Christoph, Sagi: it seems you think /proc/irq/$IRP/smp_affinity
shouldn't be allowed if drivers support managed affinity. Is that correct?
Not just shouldn't, but simply can't.
But as it stands, things are just plain borked if an rdma driver
supports ib_get_vector_affinity() yet the admin changes the affinity via
/proc...
I think we need to fix ib_get_vector_affinity to not return anything
if the device doesn't use managed irq affinity.
Steve, does iw_cxgb4 use managed affinity?
I'll send a patch for mlx5 to simply not return anything as managed
affinity is not something that the maintainers want to do.
